JP4001883B2 - Ink ribbon of thermal transfer printer and manufacturing method thereof - Google Patents

Description

  The present invention relates to an ink ribbon for a thermal transfer printer that is preferably used for an ink ribbon of a thermal transfer printer, and more particularly to an ink ribbon for a thermal transfer printer with improved detection marks and a method for manufacturing the same.

  Conventionally, an ink ribbon of a thermal transfer printer of this type has been disclosed that includes a plurality of different ink transfer regions and detection marks provided at right angles to the longitudinal direction of the transfer regions (for example, Patent Document 1).

JP 2000-33782 A (Japanese Patent Application No. 11-130056)

Ink ribbons of the above-mentioned conventional thermal transfer printers can be used for different types of printers, such as higher models, lower models, and manufacturers, by providing a lot of information in the detection marks, and can be identified. In addition, it has become possible to provide an ink ribbon for a thermal transfer printer that does not narrow the transfer area.
However, with this configuration, a detection mark must be provided for each transfer area, and the reduction of the ink area due to this has led to an increase in cost.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ink ribbon for a thermal transfer printer having a wider transfer area and a method for manufacturing the same, by greatly reducing the number of detection marks as compared with the prior art.

In order to solve the above-described problems, the present invention provides a group in which a plurality of sets formed by sequentially arranging a plurality of different ink transfer regions are formed , and three or more identical sets are formed in series. Two or more detection marks are formed for each group, and one of the detection marks is formed at the front end of the first transfer area of the first set in the group. The remainder is an ink ribbon of a thermal transfer printer, which is formed at the leading end of a transfer area other than the leading transfer area in the leading set . In the present invention, the number of the detection marks is less than the number of sets in the group, the detection mark is formed at the head of the group, and the transfer region in any of the sets excluding the head set of the group is set. You may make it form in the front-end | tip of either of a group.

In the present invention , the detection mark includes an ink ribbon of a thermal transfer printer , wherein the detection mark includes a portion having a partially different transmittance or reflectance with respect to an optical sensor used for reading the detection mark.

In the present invention, regarding the mark including a part having a partially different transmittance or reflectance in the detection mark, the transmittance or reflection between a part having a high transmittance or reflectance and a part having a low transmittance or reflectance. The thermal transfer printer ink ribbon is characterized in that the difference in rate is 10% or less at any wavelength in the visible region (400 nm to 700 nm).
In the present invention, among the detection marks, a mark including a portion having a partially different transmittance or reflectance may transmit a portion having a high transmittance or reflectance at any wavelength of 800 nm to 950 nm. When the transmittance or reflectance is measured, the portion where the transmittance or reflectance is 1% to 10% and the transmittance or reflectance is low is measured at any wavelength of 800 nm to 950 nm. In addition, an ink ribbon of a thermal transfer printer characterized by being 1% or less may be used.

Further, according to the present invention, a plurality of sets formed by sequentially arranging a plurality of different ink transfer regions are formed , and three or more identical sets are formed to form one group, and this group In the method of manufacturing an ink ribbon of a thermal transfer printer in which two or more detection marks are formed for each one, a plurality of transfer layer printing in which plate portions of the different transfer regions are respectively multi-faced The transfer area is printed for each group by a cylinder, and two or more detection marks are printed on the detection mark printing cylinder in the group, and one of the detection marks is printed on the group. thermal printer head of the set of the head of the form at the tip of the transfer region, the rest of the detection mark, and forming the tip of the head transfer area other than the transfer area of at the beginning of the set of It is a method of manufacturing the ink ribbon. In this manufacturing method, the number of the detection marks is less than the number of groups in the group, and the transfer mark is formed in any of the groups excluding the group at the top of the group while forming the detection marks at the head of the group. You may make it form in the front-end | tip of either.

  According to the present invention, since the number of detection marks formed for each group is shorter than that of the conventional one, there is an advantage that the cost is greatly reduced.

In addition, since the detection mark is provided with a portion having different characteristics, there is an effect that more information can be recorded without changing the size of the transfer region or the detection mark.
Furthermore, since detection marks having different characteristics are provided in the transfer area, the transfer areas of each set and each color can be clearly distinguished.

  The object of providing an ink ribbon for a thermal transfer printer with a wider transfer area and a method for manufacturing the same is realized by significantly reducing the number of detection marks as compared with the prior art.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
1A and 1B are schematic views showing Embodiment 1 of an ink ribbon of a thermal transfer printer according to the present invention. FIG. 1A is a plan view, and FIG. 1B is an enlarged view of a portion B in FIG. FIG.
The transfer sheet 10 of this embodiment includes a base sheet 11, a thermal transfer layer 12 (121Y, 121M, 121C, 122Y, 122M, 122C, 123Y, 123M, 123C), a detection mark 13 and the like. Ribbon.

  The base sheet 11 serves as a carrier for the transfer sheet 10 and may have predetermined heat resistance and strength. For example, paper, plastic sheets such as PET, metal foil, and the like can be used. The thickness is 0.5 to 50 μm, preferably 3 to 10 μm.

The thermal transfer layer 12 is formed on the base sheet 11 and forms one set in the order of transfer regions 12Y, 12M, and 12C for each color of yellow, magenta, and cyan, and three sets of the sets (121Y, 121M, 121C, 122Y, 122M, 122C, 123Y, 123M, 123C) to form one group. A plurality of each group is provided in the longitudinal direction.
The thermal transfer layer 12 is a layer made of a resin containing a dye that melts or sublimates and migrates by heating, and the dye is preferably a heat sublimable disperse dye, an oily dye, or a basic dye. The molecular weight is 150 to 800, preferably 310 to 700. Among these, the heat sublimation temperature, the hue, the weather resistance, the solubility in the ink composition or the binder, and the like are selected.
The thermal transfer layer 12 is dissolved in a selected dye together with a resin using a solvent to form an ink composition, and then printed to a thickness of 0.3 to 2 μm by an appropriate printing method such as gravure printing.

The detection mark 13 is a mark for detecting information about the thermal transfer sheet 10 and is formed of any material as long as the presence of the mark can be confirmed by optical, electrical, or magnetic detection means. May be.
It is sufficient to form the detection marks 13 at the leading portion of only the yellow (Y) transfer region 121Y which is the leading portion of each group, so that the detection marks 13 are formed at other Y, M, and C in the same group. There is no need, and this transfer sheet 10 is shorter than the conventional one, and has the merit of leading to a significant cost reduction.
Information on the thermal transfer sheet 10 includes, for example, front / back distinction of the thermal transfer sheet 10, recording start position, head / tail distinction (direction), type, grade, number of frames that can be printed on one roll of thermal transfer sheet, notice of termination, each color The boundary of the thermal transfer layer, the manufacturer name, the printer version, and the determination as to whether or not it is an authentic product.

As the detection mark 13, for example, a mark made of a composition containing a pigment or a dye that can be distinguished by a light source used in a resin and detected optically, such as metal powder or carbon. A mark made of a conductive resin or metal foil contained in a resin, which is electrically detected, a magnetic composition containing a magnetic metal or a compound, or a mark made of a deposited film of magnetic metal, which is magnetically detected There are things, etc.
Any detection means can be used, but what can be simplified in terms of apparatus is optical detection means.

  When the thermal transfer layer 12 of each color and the detection mark 13 overlap in the same area and the dye or pigment in the detection mark 13 has a general hue, it is necessary to use an appropriate color filter. If the infrared ray transmitting dye is selected as the dye in the layer 12 and the detection mark 13 is detected by infrared rays as the infrared light shielding mark, detection can be performed regardless of the hue of the thermal transfer layer 12.

The infrared ray shielding mark can be formed from a composition containing an infrared ray shielding material in a resin, and the most suitable infrared ray shielding material is carbon black that absorbs infrared rays most easily.
As the resin containing the infrared light shielding material, polyurethane resin, polyamide resin, vinyl chloride / vinyl acetate copolymer resin, vinyl chloride / acrylic copolymer resin, cellulose acetate butyrate, and the like are suitable. They can be used alone or in combination. These resins may be further crosslinked with a polyisocyanate compound.

When using the infrared light shielding material, the weight ratio of the infrared light shielding material and the resin in the detection mark is infrared light shielding material / resin = 1/10 to 10/1, and the thickness is about 0.5 to 5 μm. It is.
The configuration of the apparatus that detects the infrared light shielding detection mark 13 is, for example, an infrared projector such as an infrared light emitting diode disposed on one surface of the traveling thermal transfer sheet 10, an infrared sensor, and the other of the thermal transfer sheet 10. It consists of a reflector arranged on the surface and a computer connected to the infrared sensor, and instructs the printer various operations based on signals from the infrared sensor.

When an infrared projector capable of emitting infrared rays having a wavelength of 900 to 2500 nm, particularly 900 to 1000 nm, and an infrared sensor sensitive to the same wavelength region are used, the dye in the thermal transfer layer 12 absorbs infrared rays in this wavelength range. Therefore, regardless of the hue, infrared rays can be transmitted through the thermal transfer layer 12 to increase the detection efficiency of the detection mark 13 having an infrared shielding property.
Accordingly, as the dye in the thermal transfer layer 12, it is preferable to select and use a dye that substantially transmits infrared rays having a wavelength in the above range.

  In addition, since detailed composition of each part etc. is disclosed by Unexamined-Japanese-Patent No. 1-202091 proposed by this applicant for such a thermal transfer sheet, detailed description is abbreviate | omitted.

  In this embodiment, the detection mark 13 further includes portions 13a and 13b having different transmittances (or reflectances) as shown in FIG. Depending on the information to be written, it is sufficient that at least one detection mark 13 is present in the group among all the detection marks 13.

  The different portions 13a and 13b of the detection mark 13 are partially different in transmittance (or reflectance) from the optical sensor used for reading the detection mark 13, here, the infrared (IR) sensor. Yes.

  Regarding the portions 13a and 13b having different transmittances or reflectances, a difference in transmittance (or reflectance) between a portion having a high transmittance (or reflectance) and a portion having a low transmittance (or reflectance) is a visible region ( It is desirable that it is 10% or less at any wavelength of 400 nm to 700 nm. This is because the difference is difficult to understand visually and has an effect of preventing forgery.

Further, regarding the different portions 13a and 13b, the portion having a high transmittance (or reflectance) is 1% or more and 10% or less when the transmittance (or reflectance) is measured at any wavelength of 800 nm to 950 nm. In addition, the portion having low transmittance (or reflectance) is desirably 1% or less when the transmittance (or reflectance) is measured at any wavelength of 800 nm to 950 nm.
When the transmittance (or reflectance) is measured at any wavelength between 800 nm and 950 nm, the optical characteristics of the portion having a high transmittance (or reflectance) is less than 10%, and erroneous detection is unlikely to occur. preferable. For example, the mark ink is the most common black mark kneaded with carbon black, and when detection is performed using a general-purpose IR sensor, detection is not stable when the transmittance in the IR region is 10% or more.

Different portions 13a and 13b such as transmittance (or reflectance) can be formed by changing the above-described gravure printing plate depth. In addition, the widths and numbers of the different portions 13a and 13b such as transmittance (or reflectance) can be set as appropriate, and the information can be detected based on the width and number of pulses at the time of detection.
The different portions 13a and 13b may be detected by matching the mark reading sensitivity with a portion having the lowest transmittance and the like. For example, when determining an authentic product, since it is difficult to visually determine the transmittance (or reflectance) and the like, it can be easily determined if a complicated pattern is used.

According to the present embodiment, since the detection mark 13 is provided with portions having different transmittances (or reflectances), more information regarding the thermal transfer sheet 10 can be recorded.
In addition, for example, when used in a printer of a different version, or when a cassette of a transfer sheet that is not an authentic product is mounted, the detection mark 13 is different, so that an error can be displayed to make it unusable. .

  Since the detection method on the printer side is described in detail in Japanese Patent Publication No. 2-21951, etc., the description thereof is omitted here.

FIG. 2 is a plan view showing Examples 2 to 4 of the transfer sheet according to the present invention. In each of the embodiments described below, parts that perform the same functions as those of the above-described first embodiment are denoted by the same reference numerals or common reference numerals at the end, and repeated descriptions are omitted as appropriate. .
Here, each detection mark 13 has a portion with different transmittance (or reflectance) as in the first embodiment.

  As shown in FIG. 2A, the transfer sheet 10A of Example 2 corresponds to the transfer regions 121Y, 121M, and 121C of the first set of the thermal transfer layer group 12, and two detection marks 131YY and One detection mark 131M, 131C is provided. The detection marks 131YY, 131M, and 131C are formed to full width.

  As shown in FIG. 2B, the transfer sheet 10B of Example 3 has detection marks 131Y, 131m, and 131c corresponding to the transfer regions 121Y, 121M, and 121C of the first set of the thermal transfer layer group 12, respectively. Is provided. The detection mark 131Y is formed to the full width, and the detection marks 131m and 131c are formed halfway in the width direction.

  The transfer sheet 10C of Example 4 is provided with detection marks 131YL, 131M, and 131C corresponding to the first set of transfer regions 121Y, 121M, and 121C of the thermal transfer layer group 12, as shown in FIG. Is. The detection mark 131YL is a detection mark provided at 121Y which is the head of each group, and is thicker than usual. The detection marks 131M and 131C are formed in the transfer areas 121M and 121C, respectively.

FIG. 3 is an enlarged view of the detection mark on the transfer sheet according to Examples 5-7.
As shown in FIG. 3A, the detection mark 13A according to the fifth embodiment has portions 13c and 13d having different transmittances in the width direction.

  As shown in FIG. 3B, the detection mark 13B according to the sixth embodiment has three portions 13e, 13f, and 13g having different transmittances in the longitudinal direction. In this way, more information can be recorded. There may be four or more parts having different transmittances.

  In the detection mark 13C according to the seventh embodiment, as shown in FIG. 3C, portions 13h and 13i having different transmittances are formed so that one of them surrounds the other. There may be two or more enclosed portions 13h.

In each of the embodiments described above, one detection mark includes a portion having partially different characteristics. However, in each embodiment described below, each detection mark has uniform characteristics (partially different). The detection mark indicating one area and the detection mark indicating another area have different characteristics (transmittance or reflectance).
Here, the method of applying the detection mark will be described as a comparative example, and will be described while clarifying differences from the following embodiments.

FIG. 4 is a plan view showing Examples 8 to 10 of the transfer sheet. In the following embodiments, it is assumed that the detection mark 42 has uniform characteristics.
In the transfer sheet 40A of Example 8, the transfer areas having Y, M, and C as one set form a group of three sets, and the first set 421Y and 421M at the head of the transfer area of each group. , 421C are provided with detection marks 431Y ′ Y ′, 431M, 431C, respectively. The detection marks 431Y ′ Y ′ are two detection marks, both of which are detection marks having higher transmittance (or reflectance) than 431M and 431C.
Reference numerals 431M and 431C are one detection mark having a low transmittance (or reflectance). In this case, there is an advantage that only one optical sensor is required. Further, since the transmittance (or reflectance) of 431Y'Y 'is different from that of other 431M and 431C, the start of each group can be notified to the printer side, and each color is shifted due to erroneous detection such as skipping a mark. There will be no detection.

Regarding detection marks having different transmittance or reflectance, the difference in transmittance or reflectance between a detection mark having a high transmittance or reflectance and a detection mark having a low transmittance or reflectance is in the visible region (400 nm to 700 nm). Even at a wavelength of 10%, it is desirable that it is 10% or less.
Further, regarding detection marks having different transmittances or reflectances, detection marks having a high transmittance or reflectance are 1% or more and 10% when the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm. The detection mark having a low transmittance or reflectance is preferably 1% or less when the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm. Since the transmittance or reflectance is the same as that in the first embodiment, detailed description is omitted. In the following embodiments, only the transmittance will be described, but the present invention can be similarly applied to cases where the reflectance is different.

In the transfer sheet 40B of Example 9, the transfer areas having one set of Y, M, and C form one group, and the first Y, M, and C of the transfer area at the head of each group are formed. A detection mark is provided only in. Two detection marks 431YY are provided on 421Y, and one detection mark 431M, 431C ′ is provided on the other transfer areas 421M and 421C.
At this time, only 431C ′ provided in 421C has high transmittance (or reflectance), and the other detection marks 431YY and 431M are detection marks with low transmittance (or reflectance). In this case, there is an advantage that only one optical sensor is required. Further, since only 431C ′ has a high transmittance (or reflectance), there is an effect that it is in one group and notifies the end of the first set of transfer regions. However, the base sheet becomes longer by the amount of the two detection marks 431YY, which increases costs.

As shown in FIG. 4C, the transfer sheet 40C of Example 10 is provided with an OP (surface protective layer) transfer region after the transfer regions of the Y, M, and C colors of the thermal transfer layer 42, Three sets of transfer regions each having Y, M, C, and OP form one group. Among them, 431YY ′, 431M, 431C, and 431OP are provided corresponding to each of the first set 421Y, 421M, 421C, and 421OP. Two full-width detection marks 431YY ′ having different transmittance (or reflectance) are provided in the transfer area 421Y at the head of each group, and the transmittance (or reflectance) is provided in the other transfer areas 421M, 421C, and 421OP. Low detection marks 431M, 431C, and 431OP.
In this case, only one optical sensor is required, and since the form of 431YY ′ is different from 431M and 431C, the start of each group can be notified to the printer side. In addition, the time required for detection can be shortened.

FIG. 5 is a plan view showing Examples 11 to 13 of the transfer sheet according to the present invention.
5A and 5B can select different types of transfer sheets (ribbons) in the same form as the transfer sheet 40B in FIG. 2B.
In the transfer sheet 50A of Example 11, one detection mark 531Y ′ having a high transmittance (or reflectance) is provided in the transfer region 521Y at the top of the first set of each group, and the other transfer regions 521M and 521C. Are provided with detection marks 531m and 531c which are short to the middle in the width direction and have low transmittance (or reflectance).

  The detection mark 531Y ′ and the detection marks 531m and 531c have different (higher or lower) transmittances (or reflectances) than the optical sensors used for reading the respective detection marks 53, here, infrared sensors. I have to.

  The transfer sheet 50B of Example 12 includes a first set of transfer areas 521Y, 521M, and 521C at the head of each group, and a transfer mark 521Y with a full width detection mark 531Y having a low transmittance (or reflectance). 521M is provided with a short 531m halfway in the width direction with low transmittance (or reflectance), and the transfer region 521C is provided with a short 531c 'halfway in the width direction with high transmittance (or reflectance). It is a thing.

  In the transfer sheet 50C of Example 13, a single detection having a different transmittance (or reflectance) in the width direction as shown in FIG. 3A is made in the transfer region 521Y at the head of each group first set. A mark 53Y'm 'is provided, and the other transfer regions 521M, 521C, and 521OP are provided with detection marks 531m, 531c, and 531op' that are short to the middle in the width direction where the transmittance (or reflectance) is low. is there.

  According to these Examples 11 to 13, the optical sensor can detect the region even with the upper one, and can also detect more information by providing it on the lower side. Further, because of the detection mark, the base sheet is not lengthened, and the time required for detection can be shortened.

FIG. 6 is a plan view showing fourteenth to fifteenth embodiments of a transfer sheet according to the present invention.
In the transfer sheet 60A of Example 14, a full width detection mark 631Y ′ having high transmittance (or reflectance) is provided in the transfer area 621Y at the head of each group first set, and the other transfer areas 621M and 621C are provided in the other transfer areas 621M and 621C. , Detection marks 631M and 631C having a full width and low transmittance (or reflectance) are provided.

  In the transfer sheet 60B of the fifteenth embodiment, a detection mark 631Y ′ having a high transmittance (or reflectance) is provided in the transfer region 621Y at the head of the first set of each group, and the transfer regions 621M, 621C, and 621OP are provided in the transfer regions 621M, 621C, and 621OP. , Detection marks 631M, 631C, and 631OP having a full width and low transmittance are provided.

  According to these embodiments, only one optical sensor is required, and in each embodiment, the first set of 631M and 631C has the same form of the detection mark formed at 631Y which is the head of the first set of each group. Therefore, the top of each group can be notified to the printer side, and the transfer area can be prevented from shifting.

FIG. 7 is a plan view showing Example 16 of the transfer sheet according to the present invention.
The transfer sheet 70 of Example 16 forms one group by connecting five transfer regions each having three colors Y, M, and C as a set, and the transfer region at the head of the first set of each group. One detection mark 731Y having a low transmittance (or reflectance) is provided on 721Y.
In this embodiment, the start of each group can be notified to the printer side by one optical sensor, and the length of the transfer sheet is not unnecessarily increased and the time required for detection is also shortened. Can do.

FIG. 8 is a plan view showing Examples 17 and 18 of the transfer sheet according to the present invention.
In the transfer sheet 80A of Example 17, the transfer area 821Y at the top of each group first set is provided with a detection mark 831Y having a low transmittance (or reflectance) and the transfer area 822Y at the top of the second set. Are provided with a full width detection mark 832Y ′ having a high transmittance (or reflectance).

In the transfer sheet 80B of Example 18, a detection mark 831Y having a low transmittance (or reflectance) is provided in the transfer area 821Y at the top of the first set of each group, and the transfer area 823Y at the start of the third set. Further, a full width detection mark 833Y ′ having a high transmittance (or reflectance) is provided.
In Examples 17 and 18, the time required for detection can be notified to the printer side by the use of one optical sensor, and the length of the transfer sheet is not unnecessarily increased. Can also be shortened.

As shown in FIG. 9, the transfer sheet 90 of Example 19 is provided with a full width detection mark 931Y having a low transmittance (or reflectance) in the transfer region 921Y at the head of the first set of the thermal transfer layer group 92, Two sets of transfer regions 922M are provided with detection marks 932M ′ having high transmittance (or reflectance).
In this embodiment, only one optical sensor is required, and by providing two detection marks in one group, the position of each transfer region can be detected accurately, and each color due to erroneous detection is detected with a shift. There is nothing wrong.

  As shown in FIG. 10, the transfer sheet 100 of Example 20 is provided with a full width detection mark 1031Y having a low transmittance (or reflectance) in the transfer region 1021Y at the top of the first set of the thermal transfer layer group 102, A detection mark 1032M ′ having a high transmittance (or reflectance) is provided in the two sets of transfer regions 1022M, and a detection mark 1033C having a low transmittance (or reflectance) is provided in the third set of transfer regions 1023C. In this embodiment, only one optical sensor is required, three detection marks are provided in one group, the first is the first set of first transfer areas 1021Y, and the second is the second set of second transfer areas 1022M. Third, by providing the third transfer area 1023C in the third set, the position of each intra-group transfer area can be accurately detected, and each color is not detected as being shifted due to erroneous detection. .

(Example of transfer sheet manufacturing method)
FIG. 11 is a diagram for explaining an example (Example 21) of a transfer sheet manufacturing method according to the present invention.
In Example 21, the YMC printing cylinders 101, 102, and 103 have substantially the same circumference as the transfer layers 12 forming one group, and the plate portions of the YMC transfer layers 12nY, 12nM, and 12nC. 3 (n = 1 to 3) are provided (three faces).
Further, the mark printing cylinder 104 has the same circumference, and the plate portion of the detection mark 13Y is provided only at the head of the first set of Y transfer layers 121Y.

  First, three Y transfer areas 121Y, 122Y, and 123Y are simultaneously printed by the Y printing cylinder 101, and then three M transfer areas 121M, 122M, and 123M are simultaneously printed by the M printing cylinder 102, and further C printing is performed. The cylinder 103 simultaneously prints three C transfer areas 121C, 122C, and 123C. Finally, different detection marks 13 are printed by the mark printing cylinder 204.

  The detection mark 13 is recorded with information indicating the positional relationship with respect to the plate portion at the time of manufacture in addition to information indicating the color of the conventional YMC, and the characteristics of each transfer layer 12 of the manufactured transfer sheet 10 are measured in advance. In addition, when printing with the printer, the correction of the hue can be performed by inputting the correction value of the characteristic.

  According to the present embodiment, the transfer sheet 10 can be efficiently manufactured by attaching three surfaces of each transfer layer. Further, since the positional relationship between the three transfer layers provided on the three surfaces can be known by the detection mark 13 of the transfer sheet 10, a good image without unevenness can be formed by performing transfer with the characteristics corrected. can do.

(Modification)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
For example, although different portions of the detection mark or different detection marks have been described as having different transmittance or reflectance for the optical sensor, characteristics for the electrical sensor (conductivity) and characteristics for the magnetic sensor (magnetic permeability) ) Etc. may be made different.
The transfer sheet can also be applied to a sheet having a receiving layer.
Furthermore, the detection mark may be a bar code so that it has a lot of information.
Furthermore, different detection marks (Examples 8 to 20) may include partially different parts (Examples 1 to 7).

1A and 1B are schematic views illustrating a first embodiment of a transfer sheet according to the present invention, in which FIG. 1A is a plan view and FIG. 1B is an enlarged view of a portion B in FIG. It is a top view which shows the 2nd-4th embodiment of the transfer sheet by this invention. It is the figure which expanded and showed the detection mark of the transfer sheet by the 5th-7th embodiment. It is a top view which shows 8th-10th embodiment of the transfer sheet by this invention. It is a top view which shows 11th-13th embodiment of the transfer sheet by this invention. It is a top view which shows 14th and 15th embodiment of the transfer sheet by this invention. It is a top view which shows 16th Embodiment of the transfer sheet by this invention. It is a top view which shows 17th and 18th embodiment of the transfer sheet by this invention. It is a top view which shows 19th Embodiment of the transfer sheet by this invention. It is a top view which shows 20th Embodiment of the transfer sheet by this invention. It is a figure explaining 1st Embodiment of the manufacturing method of the transfer sheet by this invention.

Explanation of symbols

10, 40, 50, 60, 70, 80, 90, 100 Transfer sheet 11 Base sheet 12, 42, 52, 62, 72, 82, 92, 102 Thermal transfer layer 13, 43, 53, 63, 73, 83, 93 , 103 Detection marks 13a to 13i Parts having different transmittances

Claims (7)

A plurality of sets formed by sequentially arranging a plurality of different ink transfer regions are formed,
Three or more identical sets formed form a group, and two or more detection marks are formed for each group .
One of the detection marks is formed at the front end of the first transfer area of the first set in the group, and the remaining detection mark is formed at the front end of the transfer area other than the first transfer area in the first set. is being done,
An ink ribbon for a thermal transfer printer. A plurality of sets formed by sequentially arranging a plurality of different ink transfer regions are formed,
Three or more identical sets formed form a group, and two or more detection marks are formed for each group.
The number of detection marks is less than the number of groups in the group, and the detection mark is formed at the head of the group and any of the transfer area groups in any of the groups excluding the head group of the group. Formed in the
An ink ribbon for a thermal transfer printer. The ink ribbon of the thermal transfer printer according to claim 1 or 2 ,
The ink ribbon of a thermal transfer printer, wherein the detection mark includes a portion that partially differs in transmittance or reflectance with respect to an optical sensor used for reading the detection mark. The ink ribbon of the thermal transfer printer according to claim 3 ,
Among the detection marks, regarding a mark including a part with partially different transmittance or reflectance, there is a difference in transmittance or reflectance between a portion with high transmittance or reflectance and a portion with low transmittance or reflectance. The thermal transfer printer ink ribbon is characterized by being 10% or less at any wavelength in the visible region (400 nm to 700 nm). The ink ribbon of the thermal transfer printer according to claim 3 ,
Among the detection marks, with respect to a mark including a part having a partially different transmittance or reflectance, a portion having a high transmittance or reflectance is measured for transmittance or reflectance at any wavelength of 800 nm to 950 nm. When the transmittance or reflectance is measured at any wavelength of 800 nm to 950 nm, the portion having a transmittance of 1% to 10% and low transmittance or reflectance is 1% or less. An ink ribbon of a thermal transfer printer characterized by being. A plurality of sets formed by sequentially arranging a plurality of different ink transfer regions are formed, and a group is formed by connecting three or more of the same formed groups, and detection is performed for each group. In a method for manufacturing an ink ribbon of a thermal transfer printer, wherein an ink ribbon of a thermal transfer printer in which two or more marks are formed,
By printing a plurality of transfer layer printing cylinders each of which the plate portions of the different transfer areas are multifaceted, the transfer areas are printed for each group.
In the one group, two or more detection marks are printed with a detection mark printing cylinder, and one of the detection marks is formed at the front end of the first transfer area of the first set in the group, Forming the rest of the detection mark at the tip of a transfer area other than the start transfer area in the start set;
A method of manufacturing an ink ribbon for a thermal transfer printer. A plurality of sets in which a plurality of different ink transfer areas are arranged in order are formed, and a group is formed by connecting three or more of the same formed groups, and detection is performed for each group. In a method for manufacturing an ink ribbon of a thermal transfer printer, in which an ink ribbon of a thermal transfer printer in which two or more marks are formed,
By printing a plurality of transfer layer printing cylinders each of which the plate portions of the different transfer areas are multifaceted, the transfer areas are printed for each group.
In the group, two or more detection marks are printed by a detection mark printing cylinder so that the number of the detection marks is less than the number of sets in the group, and the detection marks are formed at the head of the group. And forming at the tip of any of the sets of transfer regions in any of the sets excluding the leading set of the group,
A method of manufacturing an ink ribbon for a thermal transfer printer.

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